Data Analysis:
machine learning, artificial neural networks, optimization algorithms, classification algorithms, clustering, graphical models, bayesian networks, ontologies

Text Mining:
named entity recognition, relation extraction, topic modelling, semantic web

Programming Languages:
Java, C, C++, Matlab, PHP, Perl, Basic, Pascal, LaTeX

Operating Systems:
Windows, Linux, LAMP, server virtualization, VMWare

Databases:
MySQL, PostgreSQL, HSQLDB, Derby, MS Access, ORM, Hibernate

Web Services:
SOAP, Axis, Apache, Tomcat, Jetty, J2EE, XML, HTML

Others:
CORBA, MPI/MPICH, Eclipse, Lucene

Languages:
business fluent: German, English
good knowledge: Italian, Spanish, French
basic knowledge: Swedish, Russian, Chinese